+1 on the Pathfinder. I built one when they first came out in the late 80's and launched it to death. I found one on Feebay recently for a very reasonable price so I made the purchase. Another cool rocket from that era is the Rigel 3 two stage. I had one of those too, but never got to launch it as a multi stage. I'd like to see some good sized upscales of a few of the more eye catching sci fi designs, like the Andromeda or the Solar Sailor/ Solar Sailor II, or maybe from the Centuri camp, a re release of the Super Kits.